Changing the height of the side tables to a more reasonable height, leaving you with more space below the screens. Simply mount the innermost arm segment upside down to the structure, turn the second innermost segment upside down as well (with its mounting pole facing upwards) and mount the remaining segments like before. The small table plate will still clear the arms but you will have a few inches more room above them.
Speaker mounts
The principle of mounting speakers via the center screw of each screenholder I used on my oZone is also possible without any problems on the r3volution. I simply drilled a 6mm hole for the speaker screw and a 8mm hole for the monitor screw. Distance between both holes is 24cm.
Finished mount seen from the rear:
And the whole pit modified – higher touchscreen, lower tables and mounted speakers below the outer screens